[BuildTools] Changes in CoinUtils

[Andreas Waechter]

Hi,

I have integrated some of the changes that Lou had suggested into the 
BuildTools/trunk/coin.m4 version.  (I didn't integrate any of the changes 
for the new autotools, since this will go at some point into the 
stable/0.5 or similar branch)

The main goal was to fix the integration of Blas and Lapack into 
CoinUtils.  Here, I also changed the CoinUtils/branches/devel version 
according on the configure.ac file Lou has sent us.

Also, t is now possible to have the Makefiles either detect the Blas and 
Lapack libraries, or to have the COIN ThirdParty Makefiles compile those 
files (like it was already done in Ipopt).  In the latter case, the Blas 
and Lapack objects are for now included in the libCoinUtils.[a|so] 
library. This is maybe not a good solution in the long run, but at least 
for now things don't break anymore.

I have only touched BuildTools/trunk and CoinUtils/branches/devel.

Things might break if you are using CoinUtils/branches/devel but not 
BuildTools/trunk in your externals.

I didn't know what version of CoinUtils I should fix.  Should I also 
integrate it into CoinUtils/trunk?  And should I fix some Externals 
somewhere?

Thanks

Andreas